/* 天天弄 Aurora UI — style.css */
@import url('https://fonts.googleapis.com/css2?family=Calistoga:ital@0;1&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ===== 变量 ===== */
:root {
  --c-red: #ff0000;
  --c-pink: #ff1493;
  --c-dark: #261717;
  --c-dark2: #1a0e0e;
  --c-dark3: #0e0808;
  --c-light: #fff0f3;
  --c-muted: rgba(255,255,255,0.55);
  --c-border: rgba(255,20,147,0.28);
  --c-card-bg: rgba(38,23,23,0.7);
  --c-overlay: rgba(14,8,8,0.82);

  --sidebar-w: 240px;
  --font-head: 'Calistoga', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius: 4px;
  --transition: 0.22s ease;

  --max-prose: 780px;
  --max-wide: 1180px;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--c-dark3);
  color: var(--c-light);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; height: auto; }
a { color: var(--c-pink); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-red); }
ul { list-style: none; }

/* ===== 布局骨架 ===== */
.layout-home body,
body.layout-home,
body.layout-channel,
body.layout-article,
body.layout-about,
body.layout-privacy {
  display: flex;
}

body {
  display: flex;
  flex-direction: row;
}

.page-wrap {
  flex: 1;
  margin-left: var(--sidebar-w);
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== 侧边导航 ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: linear-gradient(180deg, var(--c-dark) 0%, var(--c-dark3) 100%);
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar__brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 18px 16px;
  border-bottom: 1px solid var(--c-border);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--c-light);
  font-family: var(--font-head);
  font-size: 1.15rem;
  line-height: 1.2;
}
.brand-link:hover { color: var(--c-pink); }
.brand-logo { width: 32px; height: 32px; object-fit: contain; border-radius: var(--radius); }

.brand-name {
  background: linear-gradient(90deg, var(--c-red), var(--c-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-height: 40px;
  min-width: 40px;
  align-items: center;
  justify-content: center;
}
.sidebar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-light);
  border-radius: 2px;
  transition: var(--transition);
}

.sidebar__nav {
  flex: 1;
  padding: 12px 0;
}

.sidebar__nav ul {
  display: flex;
  flex-direction: column;
}

.sidebar__nav li a {
  display: block;
  padding: 11px 20px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--c-muted);
  border-left: 3px solid transparent;
  transition: all var(--transition);
  line-height: 1.4;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.sidebar__nav li a:hover,
.sidebar__nav li a[aria-current="page"] {
  color: var(--c-light);
  border-left-color: var(--c-pink);
  background: rgba(255,20,147,0.08);
}

.sidebar__contact {
  padding: 16px 18px 20px;
  border-top: 1px solid var(--c-border);
}
.contact-btn {
  display: block;
  text-align: center;
  padding: 11px 16px;
  border: 1px solid var(--c-pink);
  border-radius: var(--radius);
  color: var(--c-pink);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition);
  min-height: 44px;
  line-height: 1.4;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-btn:hover {
  background: var(--c-pink);
  color: #fff;
}

/* ===== Aurora 极光动画 ===== */
@keyframes aurora-float-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(60px, -40px) scale(1.15); }
  66% { transform: translate(-30px, 50px) scale(0.92); }
}
@keyframes aurora-float-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40% { transform: translate(-80px, 30px) scale(1.2); }
  70% { transform: translate(50px, -60px) scale(0.88); }
}
@keyframes aurora-float-3 {
  0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
  50% { transform: translate(40px, 40px) scale(1.1) rotate(20deg); }
}

.aurora-mesh {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  pointer-events: none;
}
.aurora-mesh--1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, #ff0000cc 0%, #ff000000 70%);
  top: -120px; left: -80px;
  animation: aurora-float-1 10s ease-in-out infinite;
}
.aurora-mesh--2 {
  width: 440px; height: 440px;
  background: radial-gradient(circle, #ff1493aa 0%, #ff149300 70%);
  top: 20%; right: 5%;
  animation: aurora-float-2 12s ease-in-out infinite;
}
.aurora-mesh--3 {
  width: 360px; height: 360px;
  background: radial-gradient(circle, #ff007066 0%, #ff007000 70%);
  bottom: 10%; left: 30%;
  animation: aurora-float-3 9s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .aurora-mesh { animation: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ===== Hero — 首页 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  overflow: hidden;
  background: var(--c-dark3);
}

.hero__aurora {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__slash {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    -25deg,
    var(--c-dark3) 0%,
    var(--c-dark3) 45%,
    transparent 45.5%,
    transparent 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 520px;
  padding: 80px 60px 80px 40px;
  text-align: right;
}

.hero__content--right { margin-left: auto; }

.hero__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-pink);
  border: 1px solid var(--c-pink);
  padding: 4px 12px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-family: var(--font-mono);
}

.hero__h1 {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.15;
  color: #fff;
  margin-bottom: 18px;
}

.hero__sub {
  font-size: 1.05rem;
  color: var(--c-muted);
  margin-bottom: 32px;
  line-height: 1.6;
}

.hero__cta {
  display: inline-block;
  padding: 14px 36px;
  background: linear-gradient(90deg, var(--c-red), var(--c-pink));
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius);
  transition: opacity var(--transition), transform var(--transition);
  min-height: 48px;
  line-height: 1.4;
}
.hero__cta:hover { opacity: 0.88; color: #fff; transform: translateY(-2px); }

/* ===== main-content ===== */
.main-content {
  flex: 1;
  padding: 40px 48px;
  max-width: var(--max-wide);
  width: 100%;
}

/* ===== prose ===== */
.prose-wrap {
  max-width: var(--max-prose);
}

.prose-section { margin-bottom: 40px; }

.prose-body {
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(255,240,243,0.88);
}
.prose-body h2 {
  font-family: var(--font-head);
  font-size: 1.55rem;
  color: #fff;
  margin: 2em 0 0.6em;
  line-height: 1.25;
}
.prose-body h3 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  color: var(--c-light);
  margin: 1.6em 0 0.5em;
}
.prose-body p { margin-bottom: 1.1em; }
.prose-body a { color: var(--c-pink); border-bottom: 1px solid rgba(255,20,147,0.3); }
.prose-body a:hover { color: var(--c-red); border-bottom-color: var(--c-red); }
.prose-body ul, .prose-body ol { padding-left: 1.4em; margin-bottom: 1em; }
.prose-body li { margin-bottom: 0.4em; }
.prose-body strong { color: #fff; font-weight: 600; }
.prose-body time { color: var(--c-pink); font-family: var(--font-mono); font-size: 0.85em; }
.prose-body table { width: 100%; border-collapse: collapse; margin: 1.5em 0; font-size: 0.92em; }
.prose-body th { background: rgba(255,20,147,0.15); color: #fff; padding: 10px 14px; text-align: left; border: 1px solid var(--c-border); }
.prose-body td { padding: 9px 14px; border: 1px solid var(--c-border); }

/* ===== section 标题 ===== */
.section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 24px;
}
.section-title {
  font-family: var(--font-head);
  font-size: 1.6rem;
  color: #fff;
  line-height: 1.2;
}
.section-sub {
  font-size: 0.85rem;
  color: var(--c-muted);
}
.section-count {
  font-size: 0.82rem;
  color: var(--c-pink);
  font-family: var(--font-mono);
  border: 1px solid var(--c-border);
  padding: 2px 8px;
  border-radius: var(--radius);
}

/* ===== 频道卡片网格（首页）===== */
.channels-section { margin-top: 60px; }

.ch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.ch-card {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-card-bg);
  backdrop-filter: blur(8px);
  transition: border-color var(--transition), transform var(--transition);
  overflow: hidden;
}
.ch-card:hover {
  border-color: var(--c-pink);
  transform: translateY(-3px);
}

.ch-card__link {
  display: block;
  padding: 22px 20px;
  color: inherit;
}

.ch-card__label {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--c-pink);
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

.ch-card__title {
  font-family: var(--font-head);
  font-size: 1.15rem;
  color: #fff;
  margin-bottom: 10px;
  line-height: 1.3;
}

.ch-card__desc {
  font-size: 0.84rem;
  color: var(--c-muted);
  line-height: 1.55;
  margin-bottom: 14px;
}

.ch-card__meta {
  font-size: 0.78rem;
  color: var(--c-red);
  font-family: var(--font-mono);
}

/* ===== channel-hero ===== */
.channel-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--c-dark3);
  padding-bottom: 0;
}

.channel-hero__aurora {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.channel-hero__slash {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    -18deg,
    var(--c-dark3) 0%,
    var(--c-dark3) 38%,
    transparent 38.5%,
    transparent 100%
  );
  z-index: 1;
}

.channel-hero__content {
  position: relative;
  z-index: 2;
  padding: 40px 48px;
  width: 100%;
}

.channel-hero__h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: #fff;
  line-height: 1.2;
  margin: 12px 0 10px;
}

.channel-hero__desc {
  font-size: 1rem;
  color: var(--c-muted);
  max-width: 600px;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 0.82rem;
  color: var(--c-muted);
}
.breadcrumb a { color: var(--c-muted); }
.breadcrumb a:hover { color: var(--c-pink); }
.breadcrumb span[aria-hidden] { color: rgba(255,255,255,0.3); }

/* ===== 文章列表（栏目页）===== */
.entries-section { margin-top: 48px; }

.entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}

.entry-card {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-card-bg);
  overflow: hidden;
  backdrop-filter: blur(6px);
  transition: border-color var(--transition), transform var(--transition);
}
.entry-card:hover {
  border-color: var(--c-red);
  transform: translateY(-2px);
}

.entry-card--stagger {
  animation: stagger-in 0.5s ease both;
  animation-delay: calc(var(--stagger-i, 0) * 0.07s);
}
@keyframes stagger-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.entry-card__thumb img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.entry-card__body { padding: 18px; }

.entry-card__date {
  font-size: 0.75rem;
  color: var(--c-pink);
  font-family: var(--font-mono);
  display: block;
  margin-bottom: 8px;
}

.entry-card__title {
  font-family: var(--font-head);
  font-size: 1rem;
  margin-bottom: 8px;
  line-height: 1.35;
}
.entry-card__title a { color: #fff; }
.entry-card__title a:hover { color: var(--c-pink); }

.entry-card__desc {
  font-size: 0.84rem;
  color: var(--c-muted);
  line-height: 1.55;
  margin-bottom: 14px;
}

.entry-card__more {
  font-size: 0.8rem;
  color: var(--c-red);
  font-weight: 600;
  font-family: var(--font-mono);
}
.entry-card__more:hover { color: var(--c-pink); }

/* ===== 文章页 ===== */
.article-main { padding: 0 48px 48px; }

.article-hero { margin-bottom: 0; }
.article-hero__img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 0;
}

.article-wrap { max-width: var(--max-prose); padding-top: 40px; }

.article-header { margin-bottom: 36px; }

.article-h1 {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  color: #fff;
  line-height: 1.2;
  margin: 16px 0 14px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.article-meta__date {
  font-size: 0.8rem;
  color: var(--c-pink);
  font-family: var(--font-mono);
  background: rgba(255,20,147,0.1);
  padding: 3px 10px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,20,147,0.2);
}
.article-meta__date--mod { color: var(--c-muted); background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.1); }

.related-section { margin-top: 52px; padding-top: 32px; border-top: 1px solid var(--c-border); }

.related-title {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: 18px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.related-card {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-card-bg);
  transition: border-color var(--transition);
}
.related-card:hover { border-color: var(--c-pink); }

.related-card__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  color: var(--c-muted);
  font-size: 0.88rem;
  min-height: 48px;
}
.related-card__link:hover { color: #fff; }

.related-card__arrow { color: var(--c-red); flex-shrink: 0; margin-left: 8px; }

/* ===== about banner ===== */
.about-banner {
  position: relative;
  min-height: 260px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark3);
}
.about-banner__aurora { position: absolute; inset: 0; overflow: hidden; }
.about-banner__content {
  position: relative;
  z-index: 2;
  padding: 48px;
}
.about-banner__h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: #fff;
  margin-bottom: 12px;
}
.about-banner__desc {
  font-size: 1rem;
  color: var(--c-muted);
  max-width: 560px;
}

.about-main { padding: 40px 48px; }
.about-prose { max-width: var(--max-prose); }

.about-links-section { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--c-border); }
.about-links__title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 16px;
}
.about-links__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.about-link-card {
  padding: 10px 20px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  color: var(--c-muted);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition);
  min-height: 40px;
  display: flex;
  align-items: center;
}
.about-link-card:hover {
  border-color: var(--c-pink);
  color: var(--c-pink);
  background: rgba(255,20,147,0.06);
}

/* ===== privacy banner ===== */
.privacy-banner {
  position: relative;
  min-height: 200px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(120deg, var(--c-dark3) 0%, var(--c-dark) 100%);
}
.privacy-banner__strip {
  position: absolute;
  inset: 0;
  background: linear-gradient(-20deg, transparent 55%, rgba(255,0,0,0.06) 55.5%);
}
.privacy-banner__content {
  position: relative;
  z-index: 2;
  padding: 48px;
}
.privacy-banner__h1 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: #fff;
  margin-bottom: 10px;
}
.privacy-banner__desc { font-size: 0.95rem; color: var(--c-muted); }

.privacy-main { padding: 40px 48px; }
.privacy-prose { max-width: var(--max-prose); }

.privacy-nav-section { margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--c-border); }
.privacy-nav__title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 14px;
}
.privacy-nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.privacy-nav__links a {
  padding: 8px 18px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  color: var(--c-muted);
  font-size: 0.86rem;
  min-height: 40px;
  display: flex;
  align-items: center;
  transition: all var(--transition);
}
.privacy-nav__links a:hover { border-color: var(--c-pink); color: var(--c-pink); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--c-dark2);
  border-top: 1px solid var(--c-border);
  margin-top: auto;
}

.footer__form-block {
  padding: 40px 48px 32px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}
.footer__form-title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 4px;
  flex-basis: 100%;
}
.footer__form-sub {
  font-size: 0.85rem;
  color: var(--c-muted);
  flex-basis: 100%;
  margin-bottom: 12px;
}
.footer__form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.footer__input {
  padding: 11px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  color: #fff;
  font-size: 0.9rem;
  min-width: 220px;
  min-height: 44px;
  font-family: var(--font-body);
  outline: none;
  transition: border-color var(--transition);
}
.footer__input:focus { border-color: var(--c-pink); }
.footer__input::placeholder { color: rgba(255,255,255,0.3); }

.footer__submit {
  padding: 11px 24px;
  background: linear-gradient(90deg, var(--c-red), var(--c-pink));
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  min-height: 44px;
  font-family: var(--font-body);
  transition: opacity var(--transition);
}
.footer__submit:hover { opacity: 0.85; }

.footer__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 36px 48px;
}

.footer__col-title {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--c-red);
  text-transform: uppercase;
  margin-bottom: 14px;
  font-family: var(--font-mono);
}

.footer__links { display: flex; flex-direction: column; gap: 8px; }
.footer__links a {
  font-size: 0.84rem;
  color: var(--c-muted);
  padding: 4px 0;
  min-height: 32px;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--c-light); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 48px;
  border-top: 1px solid var(--c-border);
}

.footer__copy { font-size: 0.8rem; color: rgba(255,255,255,0.3); }

.footer__bottom-links {
  display: flex;
  gap: 20px;
}
.footer__bottom-links a {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
  min-height: 32px;
  display: flex;
  align-items: center;
}
.footer__bottom-links a:hover { color: var(--c-pink); }

/* ===== 移动端 ===== */
@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }

  body { flex-direction: column; }

  .sidebar {
    position: fixed;
    top: 0; left: 0;
    width: 280px;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.28s ease;
    z-index: 200;
  }
  .sidebar.is-open { transform: translateX(0); }

  .sidebar__toggle {
    display: flex;
  }

  .page-wrap { margin-left: 0; }

  /* 顶部固定菜单按钮 */
  .page-wrap::before {
    content: '';
    display: block;
    height: 56px;
  }

  .mobile-nav-bar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 56px;
    background: var(--c-dark);
    border-bottom: 1px solid var(--c-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    z-index: 150;
  }

  .hero { min-height: 100svh; }
  .hero__content { padding: 48px 24px 60px; max-width: 100%; }
  .hero__h1 { font-size: 2.2rem; }

  .channel-hero__content { padding: 28px 20px; }
  .channel-hero { min-height: 220px; }

  .main-content { padding: 28px 20px; }
  .article-main { padding: 0 20px 40px; }
  .about-main, .privacy-main { padding: 28px 20px; }
  .about-banner__content, .privacy-banner__content { padding: 36px 20px; }

  .footer__cols { grid-template-columns: repeat(2, 1fr); padding: 28px 20px; gap: 24px; }
  .footer__form-block { padding: 28px 20px; }
  .footer__bottom { padding: 16px 20px; }

  .ch-grid { grid-template-columns: 1fr 1fr; }
  .entry-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .ch-grid { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
  .hero__content { padding: 40px 18px 52px; }
  .hero__h1 { font-size: 1.85rem; }
  .article-h1 { font-size: 1.55rem; }
  .related-grid { grid-template-columns: 1fr; }
  .footer__form { flex-direction: column; }
  .footer__input { min-width: 0; width: 100%; }
}

/* ===== 侧边栏遮罩 ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 190;
}
.sidebar-overlay.is-active { display: block; }